A processing device and processing method for a liquid cooling plate

Abstract

The present invention relates to the technical field of battery liquid cooling plate processing, and specifically relates to a processing device and a processing method for a liquid cooling plate. A processing device for a liquid cooling plate includes a box body, two working rollers for rolling, a rolling track for moving a workpiece, an electric control system for controlling the entire device, and a display screen for displaying the working state. The box body is provided with a feed inlet and a discharge outlet. It also includes a first infrared sensor. A first infrared sensor for sensing changes in the radius and temperature of the working roller is installed on one side of each working roller. A distance sensor for detecting whether warping occurs on the surface of the workpiece is fixedly installed on one side of each first infrared sensor. By respectively providing the first infrared sensors on one side of the two working rollers for sensing changes in the radius and temperature of the working roller, the present invention can detect the temperature conditions of each working roller, ensure that the temperatures of the upper roller and the lower roller are consistent, and avoid the occurrence of temperature differences, thereby preventing warping of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of battery liquid cooling plate processing, and specifically to a processing device and a processing method for a liquid cooling plate. Background Technique

[0002] At present, new energy vehicles have an increasing demand for the energy and power of batteries. Accordingly, the heat generated by the power battery assembly increases. The traditional air cooling technology can no longer meet the requirements of the highly integrated power battery assembly. Therefore, the liquid cooling solution, which has a better effect than the air cooling technology, has gradually become the mainstream.

[0003] The liquid cooling plate is the most important component in the liquid cooling solution. The liquid cooling plate is mainly formed by connecting two aluminum alloy plates. There are internal flow channels between the aluminum alloy plates, and a cooling liquid flows through the flow channels. When the battery works, excess heat is generated. The heat is transferred by the battery or the module contacting the surfaces of the two aluminum alloy plates, and finally is taken away by the cooling liquid flowing through the internal flow channels of the device.

[0004] The traditional connection method of the liquid cooling plate mainly uses the welding process to fixedly connect the two aluminum alloy plates. This method has the following defects:

[0005] 1. The heat dissipation performance is poor, and more than 3.5% of the batteries are damaged due to overheating;

[0006] 2. The solder generation rate is more than 75%, which is likely to cause environmental pollution;

[0007] 3. The splashing of welding slag and the gas generated during welding damage human health, and 95% of the workers have work injury experiences;

[0008] 4. The defective rate is more than 10.5%.

[0009] To solve the above defects, the present invention provides a processing method for a liquid cooling plate, which abandons the traditional welding process and adopts the rolling process.

[0010] Aluminum rolling is a process of processing aluminum or aluminum alloy blanks (coil blanks) into foil materials through flat rolls. The rolling technology is a pressure processing method in which a metal blank passes through the gap between a pair of rotating rolls, and the cross-section of the material is reduced and the length is increased due to the compression of the rolls. There is a phenomenon of warping at the head of the aluminum plate in the existing hot rolling technology. Warping refers to the phenomenon that during the rolling process, due to the unequal speeds of metal flow and plastic deformation on the upper and lower surfaces of the slab, the head of the slab bends upward or downward after leaving the rolls. The warping phenomenon not only affects the production efficiency and product quality, but also seriously threatens the equipment safety and brings great inconvenience to the production operation. The reasons for the head warping phenomenon are as follows:

[0011] 1. Warping caused by inconsistent metal flow rates on the upper and lower surfaces of the slab due to the temperature difference between the upper and lower surfaces of the slab;

[0012] 2. Warping caused by inconsistent radii of two working rolls due to different degrees of wear.

[0013] To address the above problems, a processing device for a liquid cooling plate is proposed. Summary of the Invention

[0014] The object of the present invention is to provide a processing device and method for a liquid cooling plate, which eliminates the influence brought by the traditional welding process by adopting a rolling process. A first infrared sensor is set on the rolling equipment to ensure that the temperatures of the upper and lower rolls tend to be balanced. It can also offset the radius difference of the working rolls by changing the distance between the two working rolls, so as to reduce the occurrence of warping.

[0015] To achieve the above object, the present invention provides the following technical solutions:

[0016] A processing device for a liquid cooling plate includes a box body, working rolls for rolling, an electric control system for controlling the whole equipment, and a display screen for displaying the working state. It also includes a first infrared sensor for sensing the radius change and temperature change of the working rolls and a distance sensor located on one side of the first infrared sensor.

[0017] Preferably, the first infrared sensor is an industrial-grade first infrared sensor, which combines temperature measurement and distance measurement but has low accuracy. If required by production, it can be split into a high-precision thermometer and a rangefinder. The working rolls are divided into an upper roll and a lower roll. Two first infrared sensors are respectively installed on one side of the upper roll or the lower roll, and this side is located at the outlet of the rolling path. The first infrared sensor faces the working roll, detects the temperature and radius of the working roll, and displays them on the display screen, so that external staff can observe and confirm the real-time situation of the working roll at any time.

[0018] Preferably, a nozzle for cooling the working roll is provided on one side of each working roll. The nozzle sprays a coolant, and the coolant can be introduced from the outside through a pipeline. The coolant can not only cool the working roll but also cool the workpiece, avoiding the workpiece from melting due to too high temperature. The valve for controlling the liquid output of the nozzle is an electromagnetic proportional regulating valve, which is electrically connected to the first infrared sensor. When the first infrared sensor detects a temperature difference between the two working rolls, the electromagnetic proportional regulating valve synchronously adjusts the flow rate of the nozzle, so that the flow rate of the nozzle corresponding to the high-temperature working roll increases, and the flow rate of the nozzle corresponding to the low-temperature working roll decreases, and finally the temperature balance is achieved, reducing the occurrence of warping.

[0019] Preferably, each working roll is connected to the first motor by a cardan joint, which can ensure that the working roll rotates normally when adjusted up and down. The shaft of each working roll is connected with a lead screw structure inside the box body. The lead screw is a trapezoidal lead screw. Each lead screw is driven to rotate by a second motor above it, so as to realize the up and down movement of the working roll. The second motor is electrically connected to the first infrared sensor. When the infrared sensor detects that the radii of the two working rolls are different, it will send an instruction to the second motor to adjust the distance between the two working rolls to offset the radius difference. If the roundness of the working roll is sufficient to affect the rolling quality, the production will be stopped immediately and an alarm will be sounded to remind the staff to replace the working roll.

[0020] Preferably, the infrared sensor is connected with a connecting rod. One end of the connecting rod is connected to the lead screw and is connected to the nut of the lead screw, so that the working roll and the infrared sensor move synchronously, ensuring that the infrared sensor is always aligned with the working roll, so as to obtain accurate measurement data.

[0021] Preferably, the distance sensor can be a laser rangefinder or an infrared rangefinder. Its main function is to measure whether the workpiece is warped. If the workpiece is warped, the warped part is closer to the distance sensor than the surface of the workpiece. Therefore, when the distance sensor detects a warping phenomenon, it will be displayed on the display to remind the staff to check the equipment.

[0022] Preferably, the universal joint is a constant velocity universal joint. A ball cage universal joint can be selected. The ball cage universal joint has the characteristics of strong load-bearing capacity, compact structure and convenient disassembly and assembly, which is suitable for the use environment of the present invention.

[0023] Preferably, the spraying unit includes four support rods arranged at both ends of the rolling track. The four support rods are distributed in a rectangle. Above the two support rods on the same side, a first moving rod is fixedly connected. A first electric slide rail is arranged in the middle of the moving rod. A second moving rod is slidably connected between the two first electric slide rails. The second moving rod can move along the first moving rod with the first electric slide rail. A second electric slide rail is arranged below the second moving rod. A spraying device for spraying the flow channel is slidably connected in the second electric slide rail. The spraying device can move along the second moving rod with the second electric slide rail. Behind the spraying unit, a suction plate device for feeding the upper plate is arranged. On one side of the suction plate device, an upper plate feeding area for storing the upper plate is arranged. The suction plate device includes a rotating device. The rotating device is fixed on the ground and can rotate around the ground. The rotating device is in a "7" shape. A first hydraulic rod is arranged above the rotating device. The output end of the first hydraulic rod faces downwards. The output end of the first hydraulic rod is fixedly connected with a suction cup. The rotating device has a pumping function and can evacuate the air in the suction cup.

[0024] Preferably, the spraying device includes a second hydraulic rod and a paint head. The second hydraulic rod is slidably connected within a second electric slide rail. The output end of the second hydraulic rod is placed downward, and the output end of the second hydraulic rod is fixedly connected to a paint head for spraying the flow channel. The first electric slide rail, the second electric slide rail, the second hydraulic rod, and the paint head are all electrically connected to the electric control system. A paint head for spraying the flow channel is provided at a part before the aluminum alloy plate enters the rolling rolls. Special-configured graphene powder is evenly sprayed on the plate after pickling, degreasing, and heat treatment using air pressure.

[0025] Preferably, second infrared sensors for detecting the temperature of the plate are fixedly connected to both the feed inlet and the discharge outlet on the box body. The second infrared sensors are symmetrically installed at the upper and lower ends of the feed inlet and the discharge outlet, and the second infrared sensors are electrically connected to the electric control system. The second infrared sensors are used to detect the temperature of the upper and lower plate surfaces. Subsequently, if composite metal rolling is involved, that is, when the plates used for the upper and lower parts are different (for example, the upper plate is made of copper and the lower plate is made of aluminum alloy), the temperature and speed can also be adjusted to perform the rolling of the composite metal while avoiding warping of the plate.

[0026] The present invention also provides a processing method for a liquid cooling plate, which is characterized by including the following steps:

[0027] Step 1: Pickle, degrease, and heat-treat the aluminum alloy plate-shaped material.

[0028] Step 2: Spray special-modulated graphene powder on the aluminum alloy plate according to the internal flow channel;

[0029] Step 3: Roll two aluminum alloy plates serving as the upper and lower plates of the liquid cooling plate so that the upper and lower plates are rolled together while retaining the inflation port

[0030] Step 4: Blow and form the rolled liquid cooling plate;

[0031] Step 5: After shaping, obtain the finished liquid cooling plate.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] 1. For the processing device of a liquid cooling plate described in the present invention, compared with the traditional technical solution, by respectively providing first infrared sensors on one side of two working rolls for sensing changes in the radius and temperature of the working rolls, the temperature conditions of each working roll can be detected, ensuring that the temperatures of the upper roll and the lower roll are the same, and avoiding warping of the plate of the liquid cooling plate during the rolling process caused by temperature differences.

[0034] 2. For the processing device of the liquid cooling plate according to the present invention, the first infrared sensor can also detect the radius of each working roll by measuring the distance from the first infrared sensor to the surface of the working roll. The first infrared sensor is electrically connected to the second motor that controls the up and down movement of the working roll. When it is detected that the radius of a certain working roll changes due to factors such as long-term operation, the first infrared sensor sends a signal to the second motor, thereby changing the distance between the two working rolls, preventing uneven stress on the upper and lower surfaces of the workpiece and avoiding warping of the plate of the liquid cooling plate during the rolling process.

[0035] 3. For the processing method of the liquid cooling plate according to the present invention, the rolling process is adopted to eliminate the influence brought by the traditional welding process, improve the heat dissipation performance and the yield rate. Moreover, for the liquid cooling plate manufactured by the rolling process, compared with the liquid cooling plate manufactured by the traditional welding process, the cost is reduced by 50%, and the bonding strength is increased by 30%. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is the front view of the present invention;

[0037] Figure 2 is the side view of the present invention;

[0038] Figure 3 is the top view of the present invention;

[0039] Figure 4 shows the influence of the relative reduction on the bending direction of the workpiece.

[0040] In the figure: 1. Box body; 2. Working roll; 3. Rolling pass; 4. Electric control system; 5. Display screen; 6. First infrared sensor; 7. Distance sensor; 8. Spraying unit; 9. Plate sucking device; 901. Upper plate feeding area; 902. Rotating device; 903. First hydraulic rod; 904. Suction cup; 10. Nozzle; 1001. Electro-magnetic proportional regulating valve; 11. Universal joint; 12. First motor; 13. Lead screw; 14. Second motor; 15. Connecting rod; 1301. Nut; 801. Support rod; 802. First moving rod; 803. First electric slide rail; 804. Second moving rod; 805. Second electric slide rail; 806. Spraying device; 8061. Second hydraulic rod; 8062. Coating head; 16. Second infrared sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0042] To achieve the above object, the present invention provides the following technical solutions:

[0043] A processing device for a liquid cooling plate, comprising a box body 1, working rollers 2 for rolling, an electric control system 4 for controlling the entire device, and a display screen 5 for displaying the working state. It further includes a first infrared sensor 6 for sensing changes in the radius and temperature of the working rollers 2 and a distance sensor 7 located on one side of the first infrared sensor 6.

[0044] During operation, the workpiece is placed on the rolling track 3. There is a system for transporting the workpiece inside the rolling track 3, which is prior art and is connected to the electric control system 4. The workpiece is transported to the working rollers 2. The motor 12 drives the working rollers 2 to rotate through the universal joint 11. The parameters of the working rollers 2 have been adjusted before the workpiece is fed. The height and relative distance of the working rollers 2 can be controlled by the motor 14. During rolling, the first infrared sensor 6 will detect the temperature and radius of the working rollers 2 in real time. When checking the temperature, ensure that the temperature of a single roller is uniform and transmit the relevant data to the electric control system 4, which is then displayed on the display screen 5 for the staff to view. The temperature during hot rolling of the aluminum strip is 410°C - 500°C. When the temperature difference between the two working rollers 2 exceeds 20°C, the rolled aluminum strip will warp. Therefore, when the first infrared sensor 6 senses that the temperature difference between the two working rollers 2 is about to reach 20°C, it will control the electromagnetic proportional regulating valve 1001 of the liquid output of the nozzle 10 through the electric control system 4. The coolant flow rate in the nozzle 10 corresponding to the working roller 2 with a higher temperature increases, enabling the rapid cooling of this working roller 2; the coolant flow rate in the nozzle 10 corresponding to the working roller 2 with a higher temperature decreases, making the cooling effect of this working roller 2 worse, thereby increasing the temperature of this working roller 2, and ultimately keeping the temperature difference between the two working rollers 2 within 20°C. Since the thickness of the conventional liquid cooling plate is 9 mm, the diameter of the working rollers 2 used is about 40 mm. If the diameters of the two working rollers 2 differ by 1 mm, the workpiece will exhibit an obvious warping phenomenon. Therefore, through the distance measurement function of the first infrared sensor 6, measure the distance between the working roller 2 and the first infrared sensor 6. When the diameters of the two rollers differ by 1 mm, increase the downward pressure of the working roller 2 with a smaller diameter, so that the workpiece receives a greater downward pressure at this end. The curve of the downward pressure and its influence on the bending of the workpiece is as Figure 4 .

[0045] Figure 4 As can be seen from the figure, the normal downward pressure is about 38%, ensuring that the curvature of the workpiece is at 0. If the radius of the working roller 2 decreases, the downward pressure of the workpiece at this position decreases. Therefore, shorten the distance between the two working rollers 2, gradually make the downward pressure tend to 38%, and display the data on the display screen 5 for the staff to view and check whether to replace the working rollers 2.

[0046] As an implementation manner of the present invention, the infrared sensor is connected with a connecting rod 15. One end of the connecting rod 15 is connected to the lead screw 13 and is connected to the nut 1301 of the lead screw 13, so that the working roller 2 and the infrared sensor move synchronously, ensuring that the infrared sensor is always aligned with the working roller 2, thereby obtaining accurate measurement data.

[0047] When it is necessary to replace workpieces of other specifications or when the first infrared sensor 6 detects that the radius difference is greater than 1 mm, the distance between the working rollers 2 needs to be adjusted. At this time, the first infrared sensor 6 corresponding to the working roller 2 must move synchronously to ensure the accuracy of the detection data. The second motor 14 is started to rotate the lead screw 13. The nut 1301 on the lead screw 13 drives the working roller 2 and the connecting rod 15 to move, and the connecting rod 15 drives the first infrared sensor 6 to move synchronously.

[0048] As an implementation manner of the present invention, when the distance sensor 7 detects that the workpiece is warped, the data is transmitted to the electronic control system 4, and the electronic control system 4 issues an alarm and suspends production.

[0049] As an implementation manner of the present invention, the spraying unit 8 includes four support rods 801 arranged at both ends of the rolling track 3. The four support rods 801 are rectangularly distributed. A first moving rod 802 is fixedly connected above the two support rods 801 on the same side. A first electric slide rail 803 is arranged in the middle of the moving rod. A second moving rod 804 is slidably connected between the two first electric slide rails 803. The second moving rod 804 can move along the first moving rod 802 with the first electric slide rail 803. A second electric slide rail 805 is arranged below the second moving rod 804. A spraying device 806 for spraying the flow channel is slidably connected in the second electric slide rail 805. The spraying device 806 can move along the second moving rod 804 with the second electric slide rail 805. The spraying device 806 includes a second hydraulic rod 8061 and a paint head 8062. The second hydraulic rod 8061 is slidably connected in the second electric slide rail 805. The output end of the second hydraulic rod 8061 is placed downward. The output end of the second hydraulic rod 8061 is fixedly connected with a paint head 8062 for spraying the flow channel. The first electric slide rail 803, the second electric slide rail 805, the second hydraulic rod 8061 and the paint head 8062 are all electrically connected to the electric control system 4. Before a part of the aluminum alloy plate enters the rolling rolls, a paint head 8062 for spraying the flow channel is arranged. The paint head 8062 can move freely within a rectangular range under the cooperation of the first electric slide rail 803, the second electric slide rail 805 and the second hydraulic rod 8601, and is sprayed through a pre-input program. The specially configured graphene powder is evenly sprayed on the plate after pickling, degreasing and heat treatment by air pressure. A plate suction device 9 for feeding the upper plate is arranged behind the spraying unit 8. An upper plate feeding area 901 for storing the upper plate is arranged on one side of the plate suction device 9. The plate suction device 9 includes a rotating device 902. The rotating device 902 is fixed on the ground and can rotate around the ground. The rotating device is in a "7" shape. A first hydraulic rod 903 is arranged above the rotating device 902. The output end of the first hydraulic rod 903 is placed downward. The output end of the first hydraulic rod 903 is fixedly connected with a suction cup 904. The rotating device 902 has an air extraction function and can extract the air in the suction cup 904. Before working, a plurality of upper plates are stacked in the upper plate feeding area 901. During working, when the lower plate passes through the spraying unit 8 and is sprayed, it continues to move along the rolling track 3. When the next lower plate is being sprayed, the rolling track 3 will pause the transmission for spraying. At this time, the sprayed lower plate will stay on one side of the plate suction device 9. The rotating device 902 rotates above the upper plate feeding area 901. The first hydraulic rod 903 extends downward to make the suction cup 904 contact with the upper plate. Then, the air extraction function of the rotating device 902 is turned on to extract the gas in the suction cup 904, so that an upper plate is closely attached to the suction cup 904. Then, the first hydraulic rod 903 retracts. The rotating device 902 rotates above the rolling track 3. Then, the suction cup 904 is ventilated to put down the upper plate, covering the sprayed lower plate. Then, the rolling track 3 brings the upper plate and the lower plate into the rolling mill.

[0050] As an embodiment of the present invention, second infrared sensors 16 for detecting the temperature of the plate are fixedly connected to both the inlet and outlet of the box body 1. The second infrared sensors are symmetrically installed at the upper and lower ends of the inlet and outlet, and the second infrared sensors 16 are electrically connected to the electric control system 4. The second infrared sensors 16 are used to detect the temperature of the upper and lower plates. Subsequently, if composite metal rolling is involved, that is, when the plates used on the upper and lower sides are different (for example, the upper plate is made of copper and the lower plate is made of aluminum alloy), the temperature and speed can also be adjusted to roll the composite metal while avoiding warping of the plates.

[0051] The present invention provides a processing method for a liquid cooling plate, characterized by comprising the following steps:

[0052] Step 1: Pickle, degrease, and heat-treat an aluminum alloy plate-shaped material.

[0053] Step 2: Spray a specially formulated graphene powder on the aluminum alloy plate according to the internal flow channels;

[0054] Step 3: Roll two aluminum alloy plates serving as the upper and lower plates of the liquid cooling plate together so that the upper and lower plates are rolled together while retaining the inflation ports.

[0055] Step 4: Blow-mold the rolled liquid cooling plate.

[0056] Step 5: After shaping, obtain the finished liquid cooling plate.

[0057] In Step 1, the function of pickling the aluminum alloy plate is to remove the oxides on the metal surface. Dilute acid is used for pickling. The dilute acid can corrode the oxides and ensure that the metal matrix is not overly affected; the purpose of degreasing the aluminum alloy plate is to remove pollutants such as grease and dust on the aluminum material surface; the main purpose of heat-treating the aluminum plate is to develop the best combination of mechanical properties that can meet the key requirements of component applications. The aluminum plate after pickling, degreasing, and heat-treatment is not prone to defects during stamping and rolling, improving the finished product rate.

[0058] In Step 2, before a part of the aluminum alloy plate enters the rolling rolls, there is a nozzle for spraying the flow channels. The specially configured graphene powder is evenly sprayed on the pickled, degreased, and heat-treated plate by air pressure.

[0059] In Step 3, the upper and lower aluminum plates of the liquid cooling plate are bonded and rolled together so that the upper and lower aluminum plates are tightly connected; compared with the liquid cooling plate made by the traditional welding process, the cost of the liquid cooling plate made by the rolling process is reduced by 50%, and the bonding strength is increased by 30%.

[0060] The rolled liquid cooling plate is placed in a blowing device for blowing, and after shaping, the finished liquid cooling plate is obtained.

[0061] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for a liquid cooling plate, comprising a box body (1), two working rollers (2) for rolling, a rolling track (3) for moving workpieces, an electric control system (4) for controlling the entire device, and a display screen (5) for displaying the working state. The box body (1) is provided with a feed inlet and a discharge outlet, and is characterized in that: It further includes a first infrared sensor (6), and a first infrared sensor (6) for sensing the change in the radius of the working roll (2) and the change in the temperature of the working roll (2) is installed on one side of each working roll (2). On one side of the entrance of each working roll (2) in the rolling path (3), a spray head (10) for cooling is provided. The spray head (10) is aligned with the rolling area of the workpiece. An electromagnetic proportional regulating valve (1001) for adjusting the flow rate is provided inside the spray head (10). The spray head (10) can spray a coolant through the electromagnetic proportional regulating valve (1001) for cooling. The spray head (10) is electrically connected to the first infrared sensor (6), and the first infrared sensor (6) can adjust the electromagnetic proportional regulating valve (1001) to control the flow rate of the coolant. The shaft of each working roll (2) is connected to a lead screw (13), and each lead screw (13) is controlled by a second motor (14). The lead screw (13) realizes the up and down movement of the working roll (2), and each second motor (14) is electrically connected to the corresponding first infrared sensor (6). Detect the temperature conditions of each working roll (2) to avoid the warping phenomenon of the plate of the liquid cooling plate during the rolling process caused by excessive temperature difference of the workpiece; when the change in the radius of a certain working roll (2) is detected, change the distance between the two working rolls (2) to prevent the warping phenomenon of the plate of the liquid cooling plate during the rolling process caused by uneven stress on the upper and lower surfaces of the workpiece. a distance sensor (7), and a distance sensor (7) for detecting whether the surface of the workpiece is warped is fixedly installed on one side of each first infrared sensor (6). a spraying unit (8), and a spraying unit (8) for spraying graphene powder on the flow path is provided on one side of the rolling path (3) at the feeding port.

2. The processing device of a liquid cooling plate according to claim 1, characterized in that: The first infrared sensor (6) is an industrial-grade first infrared sensor (6), and is arranged on one side of the outlet of the rolling path (3). Each first infrared sensor (6) is directly opposite the axis center of the corresponding working roll (2), and each first infrared sensor (6) is electrically connected to the electric control system (4).

3. The processing device for a liquid cooling plate according to claim 1, characterized in that: Each working roll (2) is connected by a universal joint (11), and the other end of the universal joint (11) is connected to a first motor (12). The first motor (12) drives the rotation of the working roll (2) through the universal joint (11).

4. The processing device of a liquid cooling plate according to claim 3, characterized in that: Each first infrared sensor (6) is fixedly connected to a connecting rod (15). The other end of the connecting rod (15) is connected to the lead screw (13) and is connected to the nut (1301) of the lead screw (13), so that the working roll (2) moves synchronously with the infrared sensor.

5. The processing device for a liquid cooling plate according to claim 3, characterized in that : The universal joint (11) is a constant velocity universal joint (11).

6. The processing device of a liquid cooling plate according to claim 1, characterized in that: The spraying unit (8) includes four support rods (801) arranged at both ends of the rolling track (3). The four support rods (801) are rectangularly distributed. Above the two support rods (801) on the same side, a first moving rod (802) is fixedly connected. A first electric slide rail (803) is arranged in the middle of the moving rod. A second moving rod (804) is slidably connected between the two first electric slide rails (803). A second electric slide rail (805) is arranged below the second moving rod (804). A spraying device (806) for spraying the flow channel is slidably connected in the second electric slide rail (805). Behind the spraying unit (8), a suction plate device (9) for feeding the upper plate is arranged. On one side of the suction plate device (9), an upper plate feeding area (901) for storing the upper plate is arranged. The suction plate device (9) includes a rotating device (902). The rotating device (902) is fixed on the ground and can rotate around the ground. The rotating device (902) is in the shape of "7". Above the rotating device (902), a first hydraulic rod (903) is arranged. The output end of the first hydraulic rod (903) faces downward. The output end of the first hydraulic rod (903) is fixedly connected with a suction cup (904). The rotating device (902) has an air extraction function and can extract the air in the suction cup (904).

7. The processing device of a liquid cooling plate according to claim 6, characterized in that: The spraying device (806) includes a second hydraulic rod (8061) and a paint head (8062). The second hydraulic rod (8061) is slidably connected in the second electric slide rail (805). The output end of the second hydraulic rod (8061) faces downward. The output end of the second hydraulic rod (8061) is fixedly connected with a paint head (8062) for spraying the flow channel. The first electric slide rail (803), the second electric slide rail (805), the second hydraulic rod (8061), and the paint head (8062) are all electrically connected to the electric control system (4).

8. The processing device of a liquid cooling plate according to claim 1, characterized in that: Second infrared sensors (16) for detecting the temperature of the plate are fixedly connected to both the inlet and outlet of the box body (1). The second infrared sensors (16) are symmetrically installed at the upper and lower ends of the inlet and outlet. The second infrared sensors (16) are electrically connected to the electric control system (4).

9. A processing method of a liquid cooling plate, characterized in that, Applied to a processing device for a liquid cooling plate according to any one of claims 1 to 8; it includes the following steps: Step 1: Pickle, degrease, and heat-treat the aluminum alloy plate-shaped material. Step 2: Spray a specially formulated graphene powder on the aluminum alloy plate according to the internal flow channel. Step 3: Roll two aluminum alloy plates serving as the upper and lower plates of the liquid cooling plate so that the upper and lower plates are rolled together while retaining the inflation port. Step 4: Blow and form the rolled liquid cooling plate. Step 5: Obtain the finished liquid cooling plate after shaping.

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